Jellyfish are fish-eating animals that float in the sea. Only a few jellyfish live in fresh water. They have soft bodies and long, stinging, poisonous tentacles that they use to catch fish. Venom, or poison, is sent out through stinging cells. A jellyfish is mostly water. There are many types of jellyfish. The smallest jellyfish are just a few inches across. The largest jellyfish is called the lion's mane, whose body can be over 3 feet across, with much longer tentacles. Some jellyfish glow in the dark. Some of the deadliest jellies include the box jelly and the tiny, Irukandji jelly. The venomous sting of these jellyfish can kill a person.
Jellyfish are fish-eating animals that float in the sea. Only a few jellyfish live in fresh water. They have soft bodies and long, stinging, poisonous tentacles that they use to catch fish. Venom, or poison, is sent out through stinging cells. A jellyfish is mostly water.
There are many types of jellyfish. The smallest jellyfish are just a few inches across. The largest jellyfish is called the lion's mane, whose body can be over 3 feet across, with much longer tentacles. Some jellyfish glow in the dark. Some of the deadliest jellies include the box jelly and the tiny, Irukandji jelly. The venomous sting of these jellyfish can kill a person.